Why can Murphy in Interstellar finally avoid the extinction of human civilization?

Murphy used Morse code to discover the information of the black hole sent back by his father from the black hole, thus solving the equation of gravitational field, enabling human beings to manipulate gravity and send human beings into space on a large scale, thus avoiding the extinction of human beings. Become a great hero that everyone admires.

Interstellar is a very brain-burning science fiction film, and it is also a classic in science fiction films.

Interstellar's story assumes that in the future, the earth's environment is bad, the resources needed by human beings will far exceed the capacity of the earth, crop wilt will greatly reduce food production, and human beings will face the danger of extinction.

At this time, scientists found an abnormal space-time region in Saturn's orbit and confirmed that it was a wormhole, and the other side of the wormhole led to an unknown galaxy; Scientists realize that it is very likely that advanced civilization is helping mankind, so scientists arrange people to cross wormholes many times to explore the situation.

The old scientist knows that it is impossible to send back information after entering the black hole, so the old scientist seems to be optimistic about plan A. In fact, all his arrangements are for plan B. This was never told to the female host Murphy until his death.

Finally, the protagonist Cooper opens the protagonist's aura, enters the black hole and comes to the high-dimensional space, and returns the data inside the black hole to Murphy in the time dimension; Then Murphy solved the equation of the old scientist, and human beings realized the manipulation of gravity from then on.

So at the end of the film, when the man Cooper wakes up, he is in a space city called Cooper Space Station (named after his daughter). After human beings manipulate gravity, a large number of human beings will immigrate into space to avoid extinction. Murphy and his father Cooper have also become heroes to save mankind.